<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>css06作业-css布局2</title>
<link href="css06.css" rel="stylesheet" type="text/css">
</head>

<body>
<h1>作业1</h1>
<div class="box1">
  <div class="item1">001</div>
  <div class="item2">002</div>
  <div class="item3">003</div>
</div>
<h2>作业2</h2>
<div class="box2"> 
	<div class="a">
<div class="item1">001</div>
	  <div class="b flex">
			<div class="item2">002</div>
		<div class="item3">003</div>
			
		
		
		
		
		
		</div>
	
	
	

	
	
	
	</div>
</div>
</body>
</html>
